Abstract
Iran is one of the most important regions for origin and diversification of wild almond species in the word. Over 20 natural species have been identified to date that are distributed in many regions of Iran. They can be used as rootstock in almond and peach due to their adaptability to severe (drought) environmental conditions and resistance to some pests and diseases. The first experiment was carried out to study germination percentage and grafting take of cultivated almond (“Shahrood-8”) on three wild almonds. Results indicated that. P. eburnean had the highest and P. eleagnifolia had the lowest seed germination. There was a significant difference between wild rootstock in grafting take percentage. P. scoparia and P. eburnean had the highest and lowest grafting percentage, respectively. In the second experiment morphological characteristics of shoot and root in three wild almond were evaluated. The results showed that P. eburnean had the most stem biomass, the least leaf area and the most specific leaf weight among three species. P. scoparia had more and larger of the root system than the other species.
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